Casing and guide for sewing machines



Ndv. 17, 1942. H. RAPPAPORT 2,302,504

CASING AND GUIDE FOR SEWING MACHINES Filed Nov. 25, 1941 I I m H p INVENTOR. ynza n. d z a norz BY g "A 7' 7' OR NEY Patented Nov. 17, 1942 UNITED STATES PATENT OFFICE CASING AND GUIDE FOR SEWING MACHINES Hyman Rappaport, Bronx, N. Y.

Application November 25, 1941, Serial No. 420,420

9 Claims.

This invention relates to new and useful improvements in a casing and guide for sewing machines.

More specifically, the invention proposes the construction of a casing and guide for sewing machines characterized by a one piece sheet metal member arranged in a manner to support a spool of ribbon, tape, or other similar material to permit a web to be continuously fed therefrom into a sewing position beneath the reciprocating needle of a conventional sewing machine.

Still further it is proposed to form the one piece sheet metal member in a manner to have a tubular portion through which the web of the ribbon or tape is adapted to pass and which is provided with strips arranged in a novel way within the tubular portion for controlling the point at which the ribbon or tape will pass through the tubular portion to cause this web to be properly aligned with the desired position at which it is wished to secure the ribbon or tape to the article being sewn.

A further object of the invention is the provision of a novel means for releasibly holding the strips in position upon the one piece sheet metal member to permit the positions to be changed as ribbons of different width are used or as the point of application of the ribbon to the article being sewn changes.

It is further proposed to provide the one piece sheet metal casing with a bracket arranged in a novel manner to support the one piece sheet metal casing in position upon the base portion of a, conventional sewing machine.

For further comprehension of this invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a plan view of a sewing machine having a one piece casing and guide constructed in accordance with this invention.

Fig. 2 is a front elevational view of Fig. 1.

Fig. 3 is an end elevational view of one side of Fig. 2. V

Fig. 4 is a plan view looking in the direction of the line 4--4 of Fig.2.

Fig. 5 is a perspective view of one of the strips,

per se.

Fig. 6 is a vertical sectional view taken substantially on the line 66 of Fig. 2.

Fig. 7 is a perspective view of the casing and guide.

The casing and guide for sewing machines,

and re-engage "them a sheet metal member I2 having a horizontal arm I3 continuing at one end into an upwardly extending vertical arm M in turn continuing into a top horizontal arm IS. The top horizontal arm IS in turn continues into a downwardly extending vertical arm I6. The arms l3, l4, l5 and I6 are so arranged that they form a tubular portion through which a web of a roll. of ribbon or tape is adapted to be passed, as will be hereinafter described. A projection I1 is formed on the vertical arm l6 and is arranged in a manner to extend beneath the first named horizontal arm l3 to form a support for this arm and prevent relative downward movement. The vertical arm I 6 has its bottom end projected substantially beyond the horizontal arm I3 and continues at its bottom end into a horizontal base arm l8 which rests on the top face of the base ll of the sewing machine.

A bracket is provided for securing the sheet metal member 12 in position upon the base II of the sewing machine. This bracket is characterized by a piece of sheet metal material I9 having one of its ends securely attached to the outside face of the vertical arm I6 of the sheet metal member l2. .The free end of the sheet metal member l9 forming the bracket has its free end oifset to be disposed substantially beneath the overhanging portion of the sewing machine. This free end is provided with a pair of adjacent inwardly extending cutouts 20. A thumb screw 2| is threadedly engaged into the base H and is adapted to have its shank passed into .one of the cutouts 20 to clamp the bracket Iii securely in position on the base ll as shown in Fig.2.

Vertical strips 22 are removably mounted between the first named horizontal arm I3 and the top arm '15 of the sheet metal member [2. Inese vertical strips 22 have their bottom ends resting on the top face of the arm IS. The top ends of the strips 22 are selectively engageable with one of a plurality of complementary serrations 23 formed on .the .bottom face of the top arm l5. Whenthe top edges of the vertical strips 22 are engaged .withtheserrations 23 this engagement limits the strips 22 against lateral movement with relation to the walls of the sheet metal member l2. To shift the position of the vertical strips 22 it is necessary to pull them out of the tubular portion of the sheet metal member l2 into desired positions. These strips 22 are provided for the purpose of guiding ribbons or tapes of different thicknesses, as will be hereinafter described.

Another vertical strip 24 is removably mounted between the base arm I8 and the bottom face of the horizontal'arm 63. This strip 24 likewise has its bottom edge resting on the top face of the base arm lfi-and its topedge selectively engageable with one of a plurality of serrations formed in the bottom face of the horizontal arm. This strip 24 is provided for the purpose of guiding material to be sewn, indicated by the dot and dash lines 26 in Fig. 2, into a desired position to receive the web of the tape or ribbon being fed through the tubular portion of the sheet metal member l2.

One face of the strip 24 is provided with a cam 21 supported upon a pintle pin 28 and provided with an outwardly extending handle 29 by which the cam 2'! is adapted to be moved. When the cam is in the position illustrated by the dotted lines in Fig. 3 it engages the top face of the base arm [8 andurges the strip 24 slightly upwards to complementarily raise the horizontal arm l3 off the projection I! and securely clamp the strips 22 in position between the horizontal arms l3 and I5. It is possible to move the cam 21 intothe position indicated by the dot and dash lines 21 in Fig. 3 to release the holding action of this cam and free the strips 22 to be removed.

A length of wire 30 has one of its ends supported upon the vertical arm l6 and its other end bent to overhang the top of the sheet member l2, as shown in Fig. 2. A roll of ribbon, tape or other similar material 3i is engageable on the bent end of the wire 30 and is adapted to have a web 32 drawn therefrom to be passed through the tubular portion of the member l2.

A thumb nut 33 is threadedly engaged on the free end of the overhanging portion or" the wire 30 and engages against a washer 34 which in turn engages one side of thespool of ribbon 3| to prevent the spool of ribbon from dropping off the end of the wire 30 as it rotates.

The rear edge of the top horizontal arm I5 is provided with a downwardly inclined resilient member 35 hinged at 35 and pressed toward the horizontal arm [3 by a suitable coil spring 35*. This resilient member 35 has its free edge bent into a foot member 36 adapted to resiliently engage the top face of the horizontal arm l3. The web of ribbon 32 is adapted to be passed between the foot member 36 and the top face of the horizontal arm l3 for limiting free passage of the web through the tubular portion and cause a drag on the ribbon so that it will be pulled therethrough at a rate of speed coinciding with the movement of the article 26 being sewn upon the sewing machine.

The operation of this device is as follows.

The sheet metal member I2 is supported upon the base II, as shown in Fig. 2, and a roll of tape or ribbon is engaged on the wire 39 and a web 32 is drawn therefrom and passed through the tubular portion of the sheet metal member beneath the foot 36. The vertical strips 22 are then engaged between the walls 13 and i5 on opposite sides of the web 32 and in facial engagement therewith for constricting the size of the opening through the tubular portion to cause the web to be fed into a desired position beneath the needle of the machine.

The vertical strip 24 is then engaged in a desired position between the base arm l8 and the arm 13 for guiding the material 26 being sewn into a desired position with relationto the web 32 and the needle of the sewing machine. The

handle 29 is then pivoted to complementarily pivot the cam 21 to engage the top face of the horizontal arm l8 and raise the arm I3 off the projection II to clamp the strips 22 in position between the horizontal arms 13 and L5. The application of the sheet metal member to the sewing States Letters Patent is:

machine is then complete and the machine is operated in the conventional manner to continuously feed the tape 3| and the material being sewn into position beneath the reciprocating needle.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United 1. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extending vertical arm, said arms forming atubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between Said base arm and said first named horizontal arm.

2. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extending vertical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm enaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, said projection being formed by bending a portion of said latter-mentionedvertical arm inwards.

3. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardiy extending vertical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, said bracket comprising a piece of sheet metal having one end attached to said latter-mentioned vertical arm and its free end offset to be disposed beneath the overhanging portion of the sewing machine, and means for securing this free end into position upon the base of said machine.

4. In a casing and guide for sewing machines,

a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extending vertical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, said bracket comprising a piece of sheet metal having one end attached to said latter-mentioned vertical arm and its free end offset to be disposed beneath the overhanging portion of the sewing machine, and means for securing this free end into position upon the base of said machine, said means comprising a thumb screw threadedly engaging the base of said machine and selectively engageable with one of a plurality of cutouts extended inwards from the free end of said bracket.

5. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extending vertical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, said vertical strips having their bottom edges resting upon said first mentioned horizontal arm and their top edges selectively engageable with one of a plurality of serrations formed on the bottom face of said top arm.

6. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extendin vertical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, said latter-mentioned vertical strip having its bottom edge resting upon said base arm and its top edge selectively engageable with one of a plurality of serrations formed on the bottom face of said first-named horizontal arm.

'7. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extending ve-v tical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a'support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, and means on said latter-named vertical strip for camming it upwards to fiex said first named horizontal arm upwards whereby said vertical strips will be firmly held in position between said first named horizontal arm and said top arm.

8. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extending vertical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, and a length of wire having one end secured to said sheet metal member and its free end bent to overhang the tubular portion of said sheet metal member, and a roll of ribbon or tape supported on the free end of said wire in a manner to have a web drawn therefrom to be passed through said tubular portion.

9. In a casing and guide for sewing machines, a sheet metal member having a horizontal arm continuing into an upwardly extending vertical arm which continues into a top horizontal arm which continues into a downwardly extending vertical arm, said arms forming a tubular portion through which a ribbon or tape may pass, a projection from said last named vertical arm engaging beneath said first named horizontal arm forming a support for it, a horizontal base arm continues from the bottom of said last named vertical arm, a bracket for attaching said member upon a sewing machine, vertical strips removably' mounted between said first named horizontal arm and said top arm, and another vertical strip removably mounted between said base arm and said first named horizontal arm, and a member extending from said top arm and frictionally engaging the top face of said first named horizontal arm so as to cause a drag on the ribbon or tape and limit it against being freely pulled therethrough.

HYMAN RAPPAPORT. 

